Yes that was my thought too. Check that BOTH R and L air lines are hooked up correctly and check level sensors as well. I ended up having a broken link on one of my level sensors on my 02 E53. I repaired the plastic link with fast set epoxy. It has lasted 2.5 years.


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2002 E53 X5 4.6iS birthdate 06/02
Estoril Blue (sold)
2010 E70 X5M, Birthdate 02/10
Colour MONTE CARLO BLAU METALLIC
Upholstery MERINO
2018 F15 X5 35d
Colour Sophistograu Brillanteffekt Metallic